Android: Free app SHREDroid really is like a shredder for Android phones. It doesn't perform a "secure delete" on a particular file or folder, but instead securely wipes the supposedly vacant spaces where deleted files used to be listed. If you're wondering why that means anything, it's because deleted files aren't… »6/14/11 6:30am 6/14/11 6:30am

Android: ESET Mobile Security is a full suite of security and privacy tools rolled into one app. Full-phone antivirus and malware scanning, call/SMS/MMS blacklisting, and a host of anti-theft features are all accessible from the main screen. As if that weren't enough, the app also has built-in system monitoring… »6/09/11 1:00pm 6/09/11 1:00pm

Dear Lifehacker, After finding someone else's cellphone outside last night in a thunderstorm, I was able to identify the owner by taking out the micro SD card and going through the pictures on my computer. After returning the phone, it occurred to me: On my smartphone, is my memory card protected by the device… »5/16/11 10:00am 5/16/11 10:00am